/* ========================================
   page-news — 品牌动态页面专属样式
   移动端优先，桌面端两栏拆分
   ======================================== */
.page-news {
  --news-accent: var(--red, #E63946);
  --news-bg: var(--black, #1D3557);
  --news-gold: var(--gold, #F4A261);
  --news-card-bg: var(--gray-dark, #334155);
  --news-border: var(--border-width, 3px) solid var(--news-gold);
  --news-shadow: var(--shadow, 0 8px 24px rgba(0,0,0,0.4));
  --news-transition: var(--transition, 0.25s ease);
  --news-radius: 0;
  --news-gap: 2rem;

  display: block;
  width: 100%;
  background-color: var(--news-bg);
  color: var(--white, #FFFFFF);
  font-family: var(--font-body, system-ui, sans-serif);
  line-height: 1.6;
  padding: 0 0 3rem;
}

/* ---- 容器 ---- */
.page-news .container {
  max-width: var(--container-max, 1280px);
  margin: 0 auto;
  padding: 0 1rem;
}

/* ---- 面包屑 ---- */
.page-news .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.5rem 0 0.5rem;
  font-size: 0.85rem;
  color: var(--gray-light, #E2E8F0);
  opacity: 0.8;
}

.page-news .breadcrumb-link {
  color: var(--news-gold);
  text-decoration: none;
  transition: opacity var(--news-transition);
}

.page-news .breadcrumb-link:hover,
.page-news .breadcrumb-link:focus-visible {
  opacity: 0.7;
  outline: 2px solid var(--news-gold);
  outline-offset: 2px;
}

.page-news .breadcrumb-sep {
  font-weight: 700;
  color: var(--news-accent);
}

.page-news .breadcrumb-current {
  font-weight: 600;
  color: var(--white);
}

/* ---- 页面标题 ---- */
.page-news .page-header {
  position: relative;
  padding: 2rem 0 2.5rem;
  border-bottom: var(--news-border);
  margin-bottom: 2.5rem;
}

.page-news .page-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 800;
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--white);
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-news .title-deco {
  color: var(--news-accent);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  line-height: 1;
}

.page-news .title-sub {
  font-family: var(--font-body, system-ui, sans-serif);
  font-size: 1rem;
  font-weight: 400;
  font-style: normal;
  text-transform: none;
  letter-spacing: 0.04em;
  color: var(--news-gold);
  opacity: 0.85;
  margin-top: 0.25rem;
}

.page-news .page-desc {
  font-size: 1.05rem;
  color: var(--gray-light, #E2E8F0);
  max-width: 720px;
  margin: 1rem 0 0;
  line-height: 1.7;
}

/* ---- 布局拆分 ---- */
.page-news .layout-split {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ---- 左侧索引面板 ---- */
.page-news .index-panel {
  order: 1;
  width: 100%;
}

.page-news .index-sticky {
  position: relative;
  background: rgba(51, 65, 85, 0.6);
  border: var(--news-border);
  padding: 1.5rem 1.2rem;
  box-shadow: var(--news-shadow);
}

.page-news .index-heading {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--news-gold);
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--news-accent);
}

.page-news .index-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-news .index-link {
  display: block;
  padding: 0.6rem 0.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all var(--news-transition);
  background: transparent;
}

.page-news .index-link:hover,
.page-news .index-link:focus-visible {
  border-left-color: var(--news-accent);
  background: rgba(230, 57, 70, 0.12);
  color: var(--news-gold);
  outline: none;
}

.page-news .index-link:focus-visible {
  outline: 2px solid var(--news-gold);
  outline-offset: 2px;
}

.page-news .index-deco {
  display: none;
}

/* ---- 右侧内容面板 ---- */
.page-news .content-panel {
  order: 2;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

/* ---- 内容章节 ---- */
.page-news .content-section {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  position: relative;
}

.page-news .section-label {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  border-bottom: 2px solid var(--news-accent);
  padding-bottom: 0.5rem;
}

.page-news .label-num {
  font-family: var(--font-data, 'JetBrains Mono', monospace);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--news-gold);
  line-height: 1;
  opacity: 0.7;
}

.page-news .section-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 800;
  font-style: italic;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: var(--white);
  margin: 0;
}

.page-news .section-body {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-news .text-block {
  flex: 1;
}

.page-news .text-block p {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--gray-light, #E2E8F0);
}

.page-news .text-block p:last-child {
  margin-bottom: 0;
}

/* ---- 特性标题 ---- */
.page-news .feature-heading {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--news-gold);
  margin: 1.5rem 0 0.4rem;
  padding-left: 0.6rem;
  border-left: 3px solid var(--news-accent);
}

.page-news .feature-heading:first-of-type {
  margin-top: 0.5rem;
}

/* ---- 维度列表 ---- */
.page-news .dimension-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

.page-news .dimension-list li {
  position: relative;
  padding: 0.6rem 1rem 0.6rem 1.8rem;
  background: rgba(51, 65, 85, 0.4);
  border-left: 3px solid var(--news-accent);
  font-size: 0.95rem;
  color: var(--gray-light, #E2E8F0);
}

.page-news .dimension-list li::before {
  content: "▸";
  position: absolute;
  left: 0.5rem;
  color: var(--news-gold);
  font-weight: 700;
}

/* ---- 数据指标卡片 ---- */
.page-news .data-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin: 1.5rem 0;
}

.page-news .metric-card {
  background: var(--news-card-bg);
  border: 2px solid rgba(244, 162, 97, 0.25);
  padding: 1rem 0.8rem;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: border-color var(--news-transition), box-shadow var(--news-transition);
}

.page-news .metric-card:hover {
  border-color: var(--news-gold);
  box-shadow: 0 0 16px rgba(244, 162, 97, 0.2);
}

.page-news .metric-name {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-light, #E2E8F0);
  opacity: 0.7;
  margin-bottom: 0.3rem;
}

.page-news .metric-value {
  font-family: var(--font-data, 'JetBrains Mono', monospace);
  font-size: 2rem;
  font-weight: 700;
  color: var(--news-gold);
  display: block;
  line-height: 1.2;
}

.page-news .metric-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--gray-light, #E2E8F0);
  opacity: 0.6;
  margin-top: 0.2rem;
}

/* ---- 使用指引步骤 ---- */
.page-news .guide-steps {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin: 1.5rem 0;
}

.page-news .guide-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(51, 65, 85, 0.35);
  border-left: 4px solid var(--news-accent);
  padding: 1rem 1.2rem;
  transition: background var(--news-transition);
}

.page-news .guide-step:hover {
  background: rgba(51, 65, 85, 0.6);
}

.page-news .step-num {
  font-family: var(--font-data, 'JetBrains Mono', monospace);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--news-gold);
  line-height: 1;
  min-width: 2rem;
  text-align: center;
  opacity: 0.8;
}

.page-news .step-content {
  flex: 1;
}

.page-news .step-title {
  font-family: var(--font-heading, 'Inter', sans-serif);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--white);
  margin: 0 0 0.3rem;
}

.page-news .step-content p {
  font-size: 0.92rem;
  color: var(--gray-light, #E2E8F0);
  margin: 0 0 0.6rem;
}

.page-news .btn-ghost {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--news-gold);
  background: transparent;
  border: 2px solid var(--news-gold);
  text-decoration: none;
  transition: all var(--news-transition);
  cursor: pointer;
}

.page-news .btn-ghost:hover,
.page-news .btn-ghost:focus-visible {
  background: var(--news-gold);
  color: var(--news-bg);
  outline: none;
  box-shadow: 0 0 12px rgba(244, 162, 97, 0.3);
}

.page-news .btn-ghost:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

/* ---- 图片区 ---- */
.page-news .section-figure {
  margin: 0.5rem 0 0;
  width: 100%;
  max-width: 100%;
  border: var(--news-border);
  box-shadow: var(--news-shadow);
  background: var(--news-card-bg);
  overflow: hidden;
}

.page-news .figure-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: attr(width) / attr(height);
}

.page-news .figure-caption {
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  color: var(--news-gold);
  background: rgba(0,0,0,0.3);
  border-top: 1px solid rgba(244, 162, 97, 0.2);
  font-style: italic;
}

/* ---- 页脚消息 ---- */
.page-news .section-note {
  margin-top: 1rem;
  padding: 1.2rem 1.5rem;
  background: rgba(230, 57, 70, 0.08);
  border-left: 4px solid var(--news-accent);
  font-size: 0.92rem;
  color: var(--gray-light, #E2E8F0);
}

.page-news .section-note p {
  margin: 0;
}

.page-news .contact-link {
  color: var(--news-gold);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: opacity var(--news-transition);
}

.page-news .contact-link:hover {
  opacity: 0.7;
}

/* ---- data-value 复用增强 ---- */
.page-news .data-value {
  font-family: var(--font-data, 'JetBrains Mono', monospace);
  font-weight: 700;
  color: var(--news-gold);
  font-size: 1.05em;
  background: rgba(244, 162, 97, 0.1);
  padding: 0.1em 0.3em;
  border: 1px solid rgba(244, 162, 97, 0.2);
}

/* ========================================
   桌面端布局 (min-width: 768px)
   ======================================== */
@media (min-width: 768px) {
  .page-news .container {
    padding: 0 2rem;
  }

  .page-news .breadcrumb {
    padding-top: 2rem;
  }

  .page-news .page-header {
    padding: 2.5rem 0 3rem;
    margin-bottom: 3rem;
  }

  .page-news .page-title {
    font-size: clamp(2.4rem, 4vw, 3.6rem);
  }

  .page-news .title-sub {
    font-size: 1.1rem;
  }

  .page-news .layout-split {
    flex-direction: row;
    align-items: flex-start;
    gap: 3rem;
  }

  .page-news .index-panel {
    order: 0;
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height, 70px) + 1.5rem);
    align-self: flex-start;
  }

  .page-news .index-sticky {
    padding: 1.8rem 1.2rem;
  }

  .page-news .index-deco {
    display: block;
    margin-top: 1.5rem;
    text-align: center;
  }

  .page-news .deco-line {
    display: block;
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, var(--news-accent), transparent);
    margin: 0 auto 0.3rem;
  }

  .page-news .deco-dot {
    display: block;
    width: 8px;
    height: 8px;
    background: var(--news-gold);
    margin: 0 auto;
    transform: rotate(45deg);
  }

  .page-news .content-panel {
    order: 0;
    flex: 1;
    min-width: 0;
    gap: 4rem;
  }

  .page-news .section-body {
    flex-direction: row;
    gap: 2rem;
    align-items: flex-start;
  }

  .page-news .section-body .text-block {
    flex: 1 1 55%;
  }

  .page-news .section-figure {
    flex: 1 1 40%;
    margin-top: 0.3rem;
  }

  .page-news .dimension-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-news .data-metrics {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-news .guide-steps {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
  }

  .page-news .guide-step {
    flex-direction: column;
    padding: 1.2rem;
  }

  .page-news .step-num {
    font-size: 1.8rem;
    text-align: left;
  }
}

/* ========================================
   宽屏微调 (min-width: 1024px)
   ======================================== */
@media (min-width: 1024px) {
  .page-news .container {
    padding: 0 2.5rem;
  }

  .page-news .index-panel {
    width: 260px;
  }

  .page-news .content-panel {
    gap: 5rem;
  }

  .page-news .section-body .text-block {
    flex: 1 1 60%;
  }

  .page-news .section-figure {
    flex: 1 1 35%;
  }

  .page-news .data-metrics {
    gap: 1rem;
  }

  .page-news .metric-card {
    padding: 1.4rem 1rem;
  }
}

/* ========================================
   大屏优化 (min-width: 1400px)
   ======================================== */
@media (min-width: 1400px) {
  .page-news .container {
    padding: 0 3rem;
  }

  .page-news .layout-split {
    gap: 4rem;
  }

  .page-news .index-panel {
    width: 300px;
  }
}